Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number

022-62211530

Mon to Sat - 11 AM to 8 PM

Difference between Genetiic flow and Genetic  drift and which one act against speciation and why and why not?

Asked by sucharitasahoo1 4th October 2017, 10:54 PM
Answered by Expert
Answer:

Gene flow is the movement of gene variants from one population to another. For example, African humans usually have a gene variant called DuffyO which protects against a form of malaria. European humans usually do not have this variant. However, intermarriage between African and European people is gradually introducing DuffyO into the European gene pool. Thus, slowly the variant would be introduced in the entire population and they would be consequently having the same genetic composition and no new species would be formed.

Genetic drift is a random change in the frequency of gene variants within a population. For example, if an individual who carries a rare gene variant happens to have more children than usual, then there will be more copies of the rare gene in the next generation. This can eventually cause a population of organisms to be genetically distinct from its original population and result in the formation of a new species, thus favouring speciation.

Answered by Expert 5th October 2017, 11:54 AM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Your answer has been posted successfully!

Latest Questions

CBSE XII Science Physics
Asked by Avadhut Katkar 16th August 2018, 12:57 PM
CBSE XII Science Physics
Asked by Avadhut Katkar 16th August 2018, 12:56 PM
CBSE XII Science Physics
Asked by Avadhut Katkar 16th August 2018, 12:55 PM

Chat with us on WhatsApp